what national day is march 12

June 28, 2026

On March 12, there isn’t just one “national day” — several popular national and international observances fall on this date each year.

Key national and world days on March 12

Here are some of the best‑known days commonly marked on March 12:

National Girl Scout Day – Celebrates the founding of the Girl Scouts of the USA.

Alfred Hitchcock Day – Honors the legendary film director and his influence on cinema.

National Plant a Flower Day – Encourages planting flowers and enjoying gardening and nature.

National Baked Scallops Day – A fun food holiday for seafood lovers.

Popcorn Lover’s Day / Popcorn Lover’s Day (National Popcorn Lover’s Day) – A snack‑centric celebration often observed on this date in recent years.

National Working Moms Day – Recognizes and appreciates working mothers and their contributions.

World Glaucoma Day – Global health awareness day focused on glaucoma and eye health.

World Day Against Cyber Censorship – Raises awareness about digital rights and online freedom of expression.

Some calendars also list country‑specific observances like Independence Day in Mauritius (Mauritius National Day) on March 12.

Quick HTML table of notable March 12 observances

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<table>
  <thead>
    <tr>
      <th>Observance</th>
      <th>Type / Theme</th>
      <th>Notes</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>National Girl Scout Day</td>
      <td>Youth / Civic</td>
      <td>Marks the founding of the Girl Scouts of the USA.[web:2][web:5][web:6]</td>
    </tr>
    <tr>
      <td>Alfred Hitchcock Day</td>
      <td>Arts & Entertainment</td>
      <td>Celebrities the films and legacy of Alfred Hitchcock.[web:2][web:3][web:6][web:7]</td>
    </tr>
    <tr>
      <td>National Plant a Flower Day</td>
      <td>Nature & Environment</td>
      <td>Encourages planting flowers and gardening as a seasonal activity.[web:1][web:2][web:4][web:5][web:6][web:8]</td>
    </tr>
    <tr>
      <td>National Baked Scallops Day</td>
      <td>Food & Beverage</td>
      <td>Seafood‑focused food holiday, often celebrated with scallop recipes.[web:1][web:2][web:3][web:4][web:5][web:6][web:7][web:8]</td>
    </tr>
    <tr>
      <td>Popcorn Lover's Day</td>
      <td>Food & Beverage</td>
      <td>Celebrates popcorn fans; appears on several March 12 lists in recent years.[web:1][web:2][web:6][web:8][web:9]</td>
    </tr>
    <tr>
      <td>National Working Moms Day</td>
      <td>Social / Family</td>
      <td>Honors working mothers and their roles at home and at work.[web:1][web:2][web:4][web:5][web:6][web:8][web:9]</td>
    </tr>
    <tr>
      <td>World Glaucoma Day</td>
      <td>Health Awareness</td>
      <td>Highlights prevention, screening, and treatment for glaucoma.[web:1][web:2][web:3][web:5][web:6]</td>
    </tr>
    <tr>
      <td>World Day Against Cyber Censorship</td>
      <td>Digital Rights / Cause</td>
      <td>Focuses on online freedom of expression and fighting internet censorship.[web:1][web:2][web:5]</td>
    </tr>
    <tr>
      <td>Independence Day (Mauritius)</td>
      <td>National Holiday</td>
      <td>Marks Mauritius’ independence; often described as Mauritius National Day.[web:2][web:5][web:6]</td>
    </tr>
  </tbody>
</table>

TL;DR: If you’re asking “what national day is March 12,” the most commonly highlighted ones are National Girl Scout Day, National Plant a Flower Day, National Baked Scallops Day, Popcorn Lover’s Day, and National Working Moms Day, alongside global observances like World Glaucoma Day and World Day Against Cyber Censorship.

Information gathered from public forums or data available on the internet and portrayed here.